Alarm clock



FIG. 1 is a front elevational view of an alarm clock showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof with the support legs in the folded position;

FIG. 4 is a left side elevational view thereof with the support legs in the extended position;

FIG. 5 is a partial cross-sectional view taken from line V--V of FIG. 1. 

The ornamental design for an alarm clock, as shown and described. 